JPG vs PNG vs WebP: Which Format Should You Use?
A clear, honest comparison of JPG, PNG, and WebP — file size, quality, transparency, and browser support — with a simple decision framework.
JPG, PNG, and WebP are not interchangeable choices. Each format was designed with different strengths. JPG is especially useful for photographs and broad compatibility, PNG is valuable for transparency and sharp graphics, and WebP is designed for efficient modern web delivery.
JPG: best known for photographs
JPG, also called JPEG, was designed for photographic images. It uses lossy compression that removes information the compression process considers less important to visual perception. This makes it effective for photographs with gradients, textures, and complex detail.
- Excellent fit for photographs.
- Usually produces relatively small files.
- Very broad compatibility.
- Does not support transparency.
- Repeated re-saving can accumulate compression artifacts.
PNG: strong for graphics and transparency
PNG is commonly useful for logos, screenshots, graphics, and images where transparency or sharp edges matter. It can preserve image information without the same type of lossy degradation associated with JPG.
- Supports transparency.
- Good for logos and graphics.
- Good for screenshots and sharp text.
- Can be significantly larger than JPG for photographs.
WebP: efficient modern web delivery
WebP is designed for modern web use and supports both lossy and lossless compression. It can be an efficient choice when reducing image weight is important and the destination supports the format.
JPG vs PNG vs WebP at a glance
| Format | Best for | Transparency | Compression | Typical use |
|---|---|---|---|---|
| JPG | Photographs | No | Lossy | Photos, broad compatibility |
| PNG | Graphics and transparency | Yes | Lossless | Logos, screenshots, graphics |
| WebP | Modern web images | Yes | Lossy or lossless | Websites and efficient delivery |
Which format should you choose?
- Photograph + maximum compatibility → JPG.
- Logo + transparency → PNG or lossless WebP.
- Screenshot with sharp text → PNG or WebP, depending on requirements.
- Modern website photograph → WebP is a strong option when supported.
- Destination explicitly requires JPG → use JPG regardless of other format advantages.
The most common format mistakes
- Using PNG for every photograph and creating unnecessarily large files.
- Converting a transparent logo to JPG and losing transparency.
- Choosing WebP without checking whether the destination accepts it.
- Assuming one format is always the smallest for every image.
- Comparing formats without considering the actual image content.